Mounting for rotary tools



May 18, 1948- H. E. ELLIOTT v 2,441,624

MOUNTING FOR ROTARY TOOLS Filed Jan. 25, 1945 2 SheebS-SheffI 1 Inventor 'Ha/@zd E. Ez/foff By his' Azormy v May 18, 1948. ELLIOTT 2,441,624.

,MOUNTING FOR ROTARY TOOLS Filed Jan. 25, 1945 2 sheets-sheet 2 Patented May 148,1 1948 MOUNTING FOR- ROTARY TOOLS Harold Ernest Elliott, Leicester, England, as-

signor to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application January 25, 1945, Serial No. 574,536 In Great Britain February 7, 1944 4 Claims. l

wax to be applied by them, otherwise the color` remaining on the rolls and brushes from a preceding operation might be transferred to the shoes. The desirability of providing separate rolls and brushes for such machines is shown in United States Letters Patent No. 2,263,682, granted November 25, 1941, upon the application of Wilfred T. Minett.

Itis an object of the present invention to provide animproved arrangement for mounting a rotary tool upon its shaft in such a manner as to enable the tool to be readily removed from the shaft and a different tool substituted in its place. In accordance with the invention, the tool shown herein is provided with means for locking it against rotation and also axial movement with respect `to the shaft upon which it is to be mounted, comprising a collar carried by the tool body and capable of a slight rotation with respect thereto to enable it to be rotated out of locking position. When the locking collar is thus rotated out of locking position, the tool may be slid axially upon the shaft; and when the locking c'ollaris released, a spring turns it into its normal or locking position wherein further axial movement upon the shaft is prevented.

These and other objects and features of the invention will appear from the following detailed description of an illustrative embodiment of the invention, when considered in connection with the accompanying drawings, and will be pointed out in the appended claims.

In the drawings,

Fig.A 1 is a side elevation of an illustrative tool mounting embodying the invention, some parts of the mounting being shown as broken away; f

Fig. '2 is an end view of the tool shown in Fig. 1; and

Fig. 3 is an exploded view of the tool.

As shown in the drawings, a shaft I0, which may abe a part of a shoe finishing machine, carries a sleeve I2 secured upon the shaft by a setscrew I3. At one end of the sleeve I2 is a radial flange I4 the purpose of which is to serve as a stop for a wooden hub I6 of a circular rotary brush which is mounted upon the sleeve I2 by axial movement. The hub I6 has wooden side flanges I8 and 20 between which is secured a mass of bristles 22 set in a foundation of cement 24 surrounding the hub I6 and maintained between the side flanges I8 and 20.

The sleeve I2 at its left-hand end portion is axially slotted so as to present a number of exterior castellations or outwardly extending tongues 26. A peripheral groove 28 near the left-hand end of the sleeve I2 interrupts the tongues and serves to divide each tongue into two parts, one on each side of the groove.

Secured tothe hub I6 by screws 30 (Fi-g. 1) is a radial flange 3| 0f a cylindrical sleeve 32 which is slotted and castellated internally to mesh with the tongues of the sleeve I2 to hold the brush against rotation relatively to the shaft I0. In the upper portion of Fig. 1 a castellation 33 of the sleeve 32 is shown in engagement with one of the slots in the sleeve I2.

Surrounding the sleeve 32 and seated against the flange 3I are two approximately semi-annular members 34 and 36. The member 34 is secured to the flange 3| by dowel pins 38 (Fig. 2) and the member 36 is free to rotate through a small angle about the sleeve 32, such rotary movement being limitedY by the contact of either of two stepped faces-40, 42 on the member 36 with one or the other of two complementally stepped faces 44, 46 on the member 34. A spring V48 and a plunger 50 mounted in a bore formed in the member 36 tends to hold the faces 40, 44 apart and the faces 42, -46 in contact with each other, as shown in Fig. 2. It will be noted that the ends of the rotary member 36 are provided with extensions 31 (Fig.V 1) which interlockingly engage similar extensions 39 on the stationary member 34 to hold the member 36 against axial movement toward the left. Y

Secured by a dowel pin 5I (Fig. 1) and. by screws 52 (Fig. 2) upon the rotary member 36 is a locking collarv 54 having a knurled exterior surface to enable-it to be turned easily by hand. Thecollar 54 comprises a cylindrical ange which 3 ts around the peripheries of the semi-annular members 34 and St, and a radial lange having a central opening which its over the sleeve I2. The collar 543 at its central opening is slotted and castellated internally in the same way as the sleeve 32 to mesh with the slots and castellations of the sleeve l2; the castellations or inwardly extending tongues on the collar 54 (not Visible in Fig. 2 since they lie directly behind the castellations 26 of the sleeve l2) are shown in Fig. Y,3 and are identi-ned by the reference numeral 5S. When the faces 4E, '4t on the members 34, 35 are in contact and when the castellations 33 on the sleeve 32 are interengaged with the slots on the sleeve iE, then the castellations on the collar 54 will be in alinement with the castellations 2S on the sleeve i2 so that the brush with its Vhub I6 and sleeve S2 can be slid axially toward but not fully into the position shown in Fig. 1, further movement being prevented by the engage-V gageable means being constructed and arranged to permit relative axial movement between the members upon a slight rotation of the collar from normal position.

2. The combination of a tool and a rotary member upon which the tool can be readily and releasably mounted, comprising a tool body having a central opening adapted to iit around the rotary member when the tool body is moved axially with respect thereto, interengageable members on the tool body and the rotary member constructed and arranged to come into engage- .ment upon relative axial movement between the l tool body and the rotary member and to prethe locking member in a stop position of rotathose on the outer end of the sleeve l2,

In itting the brush to the shaft I0, the brush unit is rst slid over the sleeve l2 with the castellations '23 of the sleeve 32 partially engaging the slots of the sleeve E2. Further -movement will be prevented by the engagement of the Castellations on the collar 5d with those on the outer end of the sleeve i2, as has been already explained. The operator will now rotate the collar 5d through a smallangle relatively to the brush until the castellations of the collar are alined with the slots in the sleeve I2. The stationary face d@ serves as a stop for the face 49 to stop the rotary movement of the collar 5ft at the position wherein the castellations of the collar register with the slots of the sleeve. The brush can now be slid further axially into the position shown in Fig. l where the castellations of the collar et are positioned in the groove 28. Upon release of the collar 511 by the operator, the spring it will rotate the collar to bring its castellations into alinement with those of the sleeve I2 to lock the brush against axial movement on the shaft. Y

Removal of the brush from the shaft may be effected by rotating the collar 54 to bring its castellations out of alinement withV those of the sleeve l2 and into alinement with the slots of the sleeve. The brush unit may then be slid axially on" the shaft.

Having described my invention, what I claim vas new and desire to secure by Letters Patent of the United States is:

l. In combination Iwith a rotary members, one of which ts around the other and is removable therefrom by relative axial movement, said members consisting, for example, ofra rotary tool tion aboutits axis, outwardly extending means 4on the rotary member, `and inwardly extending means on the locking member normally coopstating with said outwardly extending means to prevent axial movement of the tool body, said locking member being yieldably rotatable about the axis or" the tool body in opposition to said resilient means to enable the inwardly extending meanson the locking member to clear the outwardly extending means on the rotary member and thereby permit the tool body to be moved axially into operating position on the rotary member, and said locking member, when released, resuming its normal position of locking engagement to prevent axial displacement of the tool body on the rotary member.

3. In combination with a longitudinally grooved, cylindrical, rotary supporting membe-r having a circumferential groove which interrupts the tongues between the longitudinal grooves, a rotary tool `comprising a hub adapted to fit over said supporting member and having longitudinal tongues engageable with the longitudinal grooves of thesupporting member to lock the tool-against relative rotation, a locking collar rotatably mounted on said hub and having, tongues engageable with the longitudinal grooves of said supporting member,` and means for normally maintaining said locking collar in a position of rotation wherein the tongues oi the collar are in alinement with the tonguesv ofthe hub, said maintaining means being yieldable to enable the collar to be turned to bring the tongues of the collar out lor alinement with the tongues of the hub, thereby enabling the and a driven rotary member upon which the tool is mounted, an arrangement for detachably securing said members together lcomprising interengaging means on said members for preventing relative rotary movement, a collar mounted upon one of said members for rotary movement about the axis thereof, resilient means for yield- Vingly holding said collar against rotation relatively tothe member upon which the collar is mounted, a stop for determining the normal r0- tary position in which said collar is held by said resi-lient means, means for preventing relative axial movement between said collar and the member upon which it is mounted, and interengageable means on said collar and the other member for normally preventing relative axial movement between the members, said interenhub and the collar to kbe slid over the supporting member until the tongues of the collar are `in the circumferential groove of the supporting member, whereupon the collar may be released to the action of the maintaining means a-nd allowed to rotate into its normal position wherein the tongues of the collar will register with the tongues of the supporting member to pre-V Y, with the tongues of the supporting member to prevent relative longitudinal movement of the tool.

HAROLD ERNEST ELLIOI'I.

REFERENCES CITED The following references are of record. inthe le of this patent:

UNITED STATES PATENTS Number Name Date 417,612 Vose Dec. 17, 1889 1,474,153 Klein Nov. 13, 1923 1,783,549 Hudson Feb. 24, 1931 10 2,162,141 vest June 13, 1939 2,307,136 Junes Jan. 5, 1943 Certificate of Correction Patent N o. 2,441,624. May 1,8, 1948.

HAROLD ERNEST ELLIOTT It is hereby certified that error appears in the printed Specification of the above numbered patent requiring correction as follows: Column 3, line 55, claim 1, before the Word rotary insert pair of; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oce.

Signed and sealed this 2nd day of November, A. D. 1948.

THOMAS F. MURPHY,

Assistant Uommzssoner of Patents. 

